Leading Temperature Corrections to Fermi Liquid Theory in Two Dimensions

Details Leading Temperature Corrections to Fermi Liquid Theory in Two Dimensions Leading Temperature Corrections to Fermi Liquid Theory in Two Dimensions

2001-01-26

arxiv.org/abs/cond-mat/0101399v1

Phys. Rev. Lett. 86, 5337 (2001).

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.86.5337

We calculate the basic parameters of the Fermi Liquid: the scattering vertex, the Landau interaction function, the effective mass, and physical susceptibilities for a model of two-dimensional (2D) fermions with a short ranged interaction at non-zero temperature. The leading temperature dependences of the spin components of the scattering vertex, the Landau function, and the spin susceptibility are found to be linear. T-linear terms in the effective mass and in the ``charge-sector''- quantities are found to cancel to second order in the interaction, but the cancellation is argued not to be generic. The connection with previous studies of the 2D Fermi-Liquid parameters is discussed.

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